nel/src/3d/landscapevb_info.cpp

   1 // NeL - MMORPG Framework <http://dev.ryzom.com/projects/nel/>
   2 // Copyright (C) 2010  Winch Gate Property Limited
   3 //
   4 // This program is free software: you can redistribute it and/or modify
   5 // it under the terms of the GNU Affero General Public License as
   6 // published by the Free Software Foundation, either version 3 of the
   7 // License, or (at your option) any later version.
   8 //
   9 // This program is distributed in the hope that it will be useful,
  10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 // GNU Affero General Public License for more details.
  13 //
  14 // You should have received a copy of the GNU Affero General Public License
  15 // along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16
  17 #include "std3d.h"
  18
  19 #include "nel/3d/landscapevb_info.h"
  20 #include "nel/3d/vertex_buffer.h"
  21 #include "nel/3d/landscapevb_allocator.h"
  22
  23 #ifdef DEBUG_NEW
  24 #define new DEBUG_NEW
  25 #endif
  26
  27 namespace NL3D
  28 {
  29
  30
  31 // ***************************************************************************
  32 // ***************************************************************************
  33 // VertexBufferInfo.
  34 // ***************************************************************************
  35 // ***************************************************************************
  36
  37
  38 // ***************************************************************************
  39 void            CFarVertexBufferInfo::setupNullPointers()
  40 {
  41         Accessor.unlock();
  42         VertexCoordPointer= NULL;
  43         TexCoordPointer0= NULL;
  44         TexCoordPointer1= NULL;
  45         ColorPointer= NULL;
  46         GeomInfoPointer= NULL;
  47         DeltaPosPointer= NULL;
  48         AlphaInfoPointer= NULL;
  49 }
  50
  51
  52 // ***************************************************************************
  53 void            CFarVertexBufferInfo::setupPointersForVertexProgram()
  54 {
  55         // see CLandscapeVBAllocator for program definition.
  56         uint8   *vcoord= (uint8*)VertexCoordPointer;
  57
  58         TexCoordPointer0= vcoord + TexCoordOff0;
  59         TexCoordPointer1= vcoord + TexCoordOff1;
  60         GeomInfoPointer= vcoord + GeomInfoOff;
  61         DeltaPosPointer= vcoord + DeltaPosOff;
  62         AlphaInfoPointer= vcoord + AlphaInfoOff;
  63 }
  64
  65
  66 // ***************************************************************************
  67 void            CFarVertexBufferInfo::setupVertexBuffer(CVertexBuffer &vb, bool forVertexProgram)
  68 {
  69         VertexFormat= vb.getVertexFormat();
  70         VertexSize= vb.getVertexSize();
  71         NumVertices= vb.getNumVertices();
  72
  73         if(NumVertices==0)
  74         {
  75                 setupNullPointers();
  76                 return;
  77         }
  78
  79         vb.lock (Accessor);
  80         VertexCoordPointer = Accessor.getVertexCoordPointer();
  81
  82         if(forVertexProgram)
  83         {
  84                 // With VertexCoordPointer setuped, init for VP.
  85                 TexCoordOff0= vb.getValueOffEx(NL3D_LANDSCAPE_VPPOS_TEX0);                              // v[8]= Tex0.
  86                 TexCoordOff1= vb.getValueOffEx(NL3D_LANDSCAPE_VPPOS_TEX1);                              // v[9]= Tex1.
  87                 GeomInfoOff= vb.getValueOffEx(NL3D_LANDSCAPE_VPPOS_GEOMINFO);                   // v[10]= GeomInfos.
  88                 DeltaPosOff= vb.getValueOffEx(NL3D_LANDSCAPE_VPPOS_DELTAPOS);                   // v[11]= EndPos-StartPos
  89                 // Init Alpha Infos only if enabled (enabled if Value 5 are).
  90                 AlphaInfoOff= 0;
  91                 if( vb.getVertexFormat() & (1<<NL3D_LANDSCAPE_VPPOS_ALPHAINFO) )
  92                         AlphaInfoOff= vb.getValueOffEx(NL3D_LANDSCAPE_VPPOS_ALPHAINFO);         // v[12]= AlphaInfos
  93
  94                 // update Ptrs.
  95                 setupPointersForVertexProgram();
  96         }
  97         else
  98         {
  99                 TexCoordOff0= vb.getTexCoordOff(0);
 100                 TexCoordOff1= vb.getTexCoordOff(1);
 101                 TexCoordPointer0= Accessor.getTexCoordPointer(0, 0);
 102                 TexCoordPointer1= Accessor.getTexCoordPointer(0, 1);
 103
 104                 // In Far0, we don't have Color component.
 105                 if(VertexFormat & CVertexBuffer::PrimaryColorFlag)
 106                 {
 107                         ColorOff= vb.getColorOff();
 108                         // todo hulud d3d vertex color RGBA / BGRA
 109                         ColorPointer= Accessor.getColorPointer();
 110                 }
 111                 else
 112                 {
 113                         ColorOff= 0;
 114                         ColorPointer= NULL;
 115                 }
 116         }
 117
 118 }
 119
 120
 121 // ***************************************************************************
 122 void            CNearVertexBufferInfo::setupNullPointers()
 123 {
 124         Accessor.unlock();
 125         VertexCoordPointer= NULL;
 126         TexCoordPointer0= NULL;
 127         TexCoordPointer1= NULL;
 128         TexCoordPointer2= NULL;
 129         GeomInfoPointer= NULL;
 130         DeltaPosPointer= NULL;
 131 }
 132
 133
 134 // ***************************************************************************
 135 void            CNearVertexBufferInfo::setupPointersForVertexProgram()
 136 {
 137         // see CLandscapeVBAllocator for program definition.
 138         uint8   *vcoord= (uint8*)VertexCoordPointer;
 139
 140         TexCoordPointer0= vcoord + TexCoordOff0;
 141         TexCoordPointer1= vcoord + TexCoordOff1;
 142         TexCoordPointer2= vcoord + TexCoordOff2;
 143         GeomInfoPointer= vcoord + GeomInfoOff;
 144         DeltaPosPointer= vcoord + DeltaPosOff;
 145
 146 }
 147
 148
 149 // ***************************************************************************
 150 void            CNearVertexBufferInfo::setupVertexBuffer(CVertexBuffer &vb, bool forVertexProgram)
 151 {
 152         VertexFormat= vb.getVertexFormat();
 153         VertexSize= vb.getVertexSize();
 154         NumVertices= vb.getNumVertices();
 155
 156         if(NumVertices==0)
 157         {
 158                 setupNullPointers();
 159                 return;
 160         }
 161
 162         vb.lock (Accessor);
 163         VertexCoordPointer= Accessor.getVertexCoordPointer();
 164
 165         if(forVertexProgram)
 166         {
 167                 // With VertexCoordPointer setuped, init for VP.
 168                 TexCoordOff0= vb.getValueOffEx(NL3D_LANDSCAPE_VPPOS_TEX0);                              // v[8]= Tex0.
 169                 TexCoordOff1= vb.getValueOffEx(NL3D_LANDSCAPE_VPPOS_TEX1);                              // v[9]= Tex1.
 170                 TexCoordOff2= vb.getValueOffEx(NL3D_LANDSCAPE_VPPOS_TEX2);                              // v[13]= Tex1.
 171                 GeomInfoOff= vb.getValueOffEx(NL3D_LANDSCAPE_VPPOS_GEOMINFO);                   // v[10]= GeomInfos.
 172                 DeltaPosOff= vb.getValueOffEx(NL3D_LANDSCAPE_VPPOS_DELTAPOS);                   // v[11]= EndPos-StartPos
 173
 174                 // update Ptrs.
 175                 setupPointersForVertexProgram();
 176         }
 177         else
 178         {
 179                 TexCoordPointer0= Accessor.getTexCoordPointer(0, 0);
 180                 TexCoordPointer1= Accessor.getTexCoordPointer(0, 1);
 181                 TexCoordPointer2= Accessor.getTexCoordPointer(0, 2);
 182
 183                 TexCoordOff0= vb.getTexCoordOff(0);
 184                 TexCoordOff1= vb.getTexCoordOff(1);
 185                 TexCoordOff2= vb.getTexCoordOff(2);
 186         }
 187 }
 188
 189
 190 } // NL3D